package com.miaoxie.forum.module.auth.shared.utils;

import com.alibaba.fastjson.JSONObject;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.http.HttpEntity;
import org.apache.http.HttpStatus;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpRequestRetryHandler;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;

import java.io.File;
import java.io.IOException;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

/**
 * @author H__D
 * @date 2016年10月19日 上午11:27:25
 */
public class HttpClientUtil {
    //常量数字200
    public static final int int_200 = 200;
    //常量数字3000
    public static final int int_3000 = 10000;
    //常量数字300
    public static final int int_300 = 300;
    // utf-8字符编码
    public static final String CHARSET_UTF_8 = "utf-8";

    // HTTP内容类型。
    public static final String CONTENT_TYPE_TEXT_HTML = "text/xml";

    // HTTP内容类型。相当于form表单的形式，提交数据
    public static final String CONTENT_TYPE_FORM_URL = "application/x-www-form-urlencoded";

    // HTTP内容类型。相当于form表单的形式，提交数据
    public static final String CONTENT_TYPE_JSON_URL = "application/json;charset=utf-8";


    // 连接管理器
    private static PoolingHttpClientConnectionManager pool;

    // 请求配置
    private static RequestConfig requestConfig;

    static {

        try {
            //System.out.println("初始化HttpClientTest~~~开始");
            SSLContextBuilder builder = new SSLContextBuilder();
            builder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
            SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
                    builder.build());
            // 配置同时支持 HTTP 和 HTPPS
            Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create().register(
                    "http", PlainConnectionSocketFactory.getSocketFactory()).register(
                    "https", sslsf).build();
            // 初始化连接管理器
            pool = new PoolingHttpClientConnectionManager(
                    socketFactoryRegistry);
            // 将最大连接数增加到200，实际项目最好从配置文件中读取这个值
            pool.setMaxTotal(int_200);
            // 设置最大路由
            pool.setDefaultMaxPerRoute(2);
            // 根据默认超时限制初始化requestConfig
            int socketTimeout = int_3000;
            int connectTimeout = int_3000;
            int connectionRequestTimeout = int_3000;
            requestConfig = RequestConfig.custom().setConnectionRequestTimeout(
                    connectionRequestTimeout).setSocketTimeout(socketTimeout).setConnectTimeout(
                    connectTimeout).build();

            //System.out.println("初始化HttpClientTest~~~结束");
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (KeyStoreException e) {
            e.printStackTrace();
        } catch (KeyManagementException e) {
            e.printStackTrace();
        }


        // 设置请求超时时间
        requestConfig = RequestConfig.custom().setSocketTimeout(int_3000).setConnectTimeout(int_3000)
                .setConnectionRequestTimeout(int_3000).build();
    }

    public static CloseableHttpClient getHttpClient() {

        CloseableHttpClient httpClient = HttpClients.custom()
                // 设置连接池管理
                .setConnectionManager(pool)
                // 设置请求配置
                .setDefaultRequestConfig(requestConfig)
                // 设置重试次数
                .setRetryHandler(new DefaultHttpRequestRetryHandler(0, false))
                .build();

        return httpClient;
    }
    /**
     * 发送Post请求
     *
     * @param httpPost
     * @return
     */
    private static String sendBodyHttpPost(PostMethod httpPost) throws Exception {


        HttpClient httpClient = new HttpClient();
        CloseableHttpResponse response = null;
        // 响应内容
        String responseContent = null;
        try {


            // 配置请求信息

            // 执行请求
            httpClient.executeMethod(httpPost);
            // 得到响应实例
            responseContent = httpPost.getResponseBodyAsString();
            responseContent = new String(responseContent.getBytes("ISO-8859-1"),"utf-8");
            System.out.println(responseContent);
        } catch (Exception e) {
            throw new Exception(e.getMessage());
        } finally {
            try {
                // 释放资源
                if (response != null) {
                    response.close();
                }
            } catch (IOException e) {
                throw new Exception(e.getMessage());
            }
        }
        return responseContent;
    }
    /**
     * 发送Post请求
     *
     * @param httpPost
     * @return
     */
    private static String sendHttpPost(HttpPost httpPost) throws Exception {

        CloseableHttpClient httpClient = null;
        CloseableHttpResponse response = null;
        // 响应内容
        String responseContent = null;
        try {
            // 创建默认的httpClient实例.
            httpClient = getHttpClient();


            // 配置请求信息
            httpPost.setConfig(requestConfig);
            // 执行请求
            response = httpClient.execute(httpPost);
            // 得到响应实例
            HttpEntity entity = response.getEntity();

            // 可以获得响应头
            // Header[] headers = response.getHeaders(HttpHeaders.CONTENT_TYPE);
            // for (Header header : headers) {
            // System.out.println(header.getName());
            // }

            // 得到响应类型
            // System.out.println(ContentType.getOrDefault(response.getEntity()).getMimeType());

            // 判断响应状态
            if (response.getStatusLine().getStatusCode() >= int_300) {
                responseContent = String.valueOf(response.getStatusLine().getStatusCode());
//                responseContent = EntityUtils.toString(entity, CHARSET_UTF_8);

                throw new Exception(

                        "HTTP Request is not success, Response code is " + response.getStatusLine().getStatusCode() + "message:" + EntityUtils.toString(entity, CHARSET_UTF_8));
            }

            if (HttpStatus.SC_OK == response.getStatusLine().getStatusCode()) {
                responseContent = EntityUtils.toString(entity, CHARSET_UTF_8);
                EntityUtils.consume(entity);
            }

        } catch (Exception e) {
            throw new Exception(e.getMessage());
        } finally {
            try {
                // 释放资源
                if (response != null) {
                    response.close();
                }
            } catch (IOException e) {
                throw new Exception(e.getMessage());
            }
        }
        return responseContent;
    }

    /**
     * 发送Get请求
     *
     * @param httpGet
     * @return
     */
    private static String sendHttpGet(HttpGet httpGet) {

        CloseableHttpClient httpClient = null;
        CloseableHttpResponse response = null;
        // 响应内容
        String responseContent = null;
        try {
            // 创建默认的httpClient实例.
            httpClient = getHttpClient();
            // 配置请求信息
            httpGet.setConfig(requestConfig);
            // 执行请求
            response = httpClient.execute(httpGet);
            // 得到响应实例
            HttpEntity entity = response.getEntity();

            // 可以获得响应头
            // Header[] headers = response.getHeaders(HttpHeaders.CONTENT_TYPE);
            // for (Header header : headers) {
            // System.out.println(header.getName());
            // }

            // 得到响应类型
            // System.out.println(ContentType.getOrDefault(response.getEntity()).getMimeType());

            // 判断响应状态
            if (response.getStatusLine().getStatusCode() >= int_300) {
                throw new Exception(
                        "HTTP Request is not success, Response code is " + response.getStatusLine().getStatusCode());
            }

            if (HttpStatus.SC_OK == response.getStatusLine().getStatusCode()) {
                responseContent = EntityUtils.toString(entity, CHARSET_UTF_8);
                EntityUtils.consume(entity);
            }

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                // 释放资源
                if (response != null) {
                    response.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return responseContent;
    }

    private static HttpMethod getMethod(String url, String param) throws IOException{
        GetMethod get = new GetMethod(url+"?"+param);
        get.releaseConnection();
        return get;
    }

    public static String postMethod(String url,Map<String,String> parameterMap) throws Exception {
        PostMethod post = new PostMethod(url);
        post.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=gbk");
        NameValuePair[] param = new NameValuePair[parameterMap.size()];
        int i =0;
        for (String str : parameterMap.keySet()) {
            param[i] = new NameValuePair(str,parameterMap.get(str));
            i++;
        }
        post.setRequestBody(param);
        post.releaseConnection();
        return sendBodyHttpPost(post);
    }
    /**
     * 发送 post请求
     *
     * @param httpUrl 地址
     */
    public static String sendHttpPost(String httpUrl) throws Exception {
        // 创建httpPost
        HttpPost httpPost = new HttpPost(httpUrl);
        return sendHttpPost(httpPost);
    }

    /**
     * 发送 get请求
     *
     * @param httpUrl
     */
    public static String sendHttpGet(String httpUrl) {
        // 创建get请求
        HttpGet httpGet = new HttpGet(httpUrl);
        return sendHttpGet(httpGet);
    }

    /**
     * 发送 post请求
     *
     * @param httpUrl 地址
     * @param
     */
    public static String sendHttpGetParmMap(String httpUrl, Map<String, String> headerMap) throws Exception {
        HttpGet httpPost = new HttpGet(httpUrl);// 创建httpPost
//        // 设置参数
//        if (params != null && params.trim().length() > 0) {
//            StringEntity stringEntity = new StringEntity(params, "UTF-8");
//            stringEntity.setContentType(CONTENT_TYPE_FORM_URL);
//            if (headerMap!=null){
//                // for (String headerKey : headerMap.keySet()){
//                for (Map.Entry<String, String> entry : headerMap.entrySet()) {
//                    // httpPost.setHeader(headerKey,headerMap.get(headerKey));
//                    httpPost.setHeader(entry.getKey(),entry.getValue());
//                }
//            }
//            httpPost.setEntity(stringEntity);
//        }
        for (Map.Entry<String, String> entry : headerMap.entrySet()) {
            // httpPost.setHeader(headerKey,headerMap.get(headerKey));
            httpPost.setHeader(entry.getKey(), entry.getValue());
        }
        return sendHttpGet(httpPost);
    }


    /**
     * 发送 post请求（带文件）
     *
     * @param httpUrl   地址
     * @param maps      参数
     * @param fileLists 附件
     */
    public static String sendHttpPost(String httpUrl, Map<String, String> maps, List<File> fileLists) throws Exception {
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost
        MultipartEntityBuilder meBuilder = MultipartEntityBuilder.create();
        if (maps != null) {
            for (Map.Entry<String, String> entry : maps.entrySet()) {
                String key = entry.getKey();
                meBuilder.addPart(key, new StringBody(entry.getValue(), ContentType.TEXT_PLAIN));
            }
//            for (String key : maps.keySet()) {
//                meBuilder.addPart(key, new StringBody(maps.get(key), ContentType.TEXT_PLAIN));
//            }
        }
        if (fileLists != null) {
            for (File file : fileLists) {
                FileBody fileBody = new FileBody(file);
                meBuilder.addPart("files", fileBody);
            }
        }
        HttpEntity reqEntity = meBuilder.build();
        httpPost.setEntity(reqEntity);
        return sendHttpPost(httpPost);
    }

    /**
     * 发送 post请求
     *
     * @param httpUrl 地址
     * @param params  参数(格式:key1=value1&key2=value2)
     */
    public static String sendHttpPost(String httpUrl, String params) throws Exception {
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost
        try {
            // 设置参数
            if (params != null && params.trim().length() > 0) {
                StringEntity stringEntity = new StringEntity(params, "UTF-8");
                stringEntity.setContentType(CONTENT_TYPE_FORM_URL);
                httpPost.setEntity(stringEntity);
            }
            return sendHttpPost(httpPost);
        } catch (Exception e) {
            e.printStackTrace();
            throw new Exception(e.getMessage());
        }
    }

    /**
     * 发送 post请求 自定义 headers
     *
     * @param httpUrl 地址
     * @param
     */
    public static String sendHttpPostParmMap(String httpUrl, Map<String, String> maps, Map<String, String> headerMap) throws Exception {
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost
        String params = convertStringParamter(maps);
        // 设置参数
        if (params != null && params.trim().length() > 0) {
            StringEntity stringEntity = new StringEntity(params, "UTF-8");
            stringEntity.setContentType(CONTENT_TYPE_FORM_URL);
            if (headerMap != null) {
                // for (String headerKey : headerMap.keySet()){
                for (Map.Entry<String, String> entry : headerMap.entrySet()) {
                    // httpPost.setHeader(headerKey,headerMap.get(headerKey));
                    httpPost.setHeader(entry.getKey(), entry.getValue());
                }
            }
            httpPost.setEntity(stringEntity);
        }
        return sendHttpPost(httpPost);
    }

    /**
     * 发送 post请求
     *
     * @param maps 参数
     */
    public static String sendHttpPost(String httpUrl, Map<String, String> maps) throws Exception {
        String parem = convertStringParamter(maps);
        return sendHttpPost(httpUrl, parem);
    }


    /**
     * 发送 post请求 发送json数据
     *
     * @param httpUrl    地址
     * @param paramsJson 参数(格式 json)
     */
    public static String sendHttpPostJson(String httpUrl, String paramsJson) throws Exception {
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost
        // 设置参数
        if (paramsJson != null && paramsJson.trim().length() > 0) {
            StringEntity stringEntity = new StringEntity(paramsJson, "UTF-8");
            stringEntity.setContentType(CONTENT_TYPE_JSON_URL);
            httpPost.setEntity(stringEntity);
        }
        return sendHttpPost(httpPost);
    }

    /**
     * 发送 post请求 发送xml数据
     *
     * @param httpUrl   地址
     * @param paramsXml 参数(格式 Xml)
     */
    public static String sendHttpPostXml(String httpUrl, String paramsXml) throws Exception {
        HttpPost httpPost = new HttpPost(httpUrl);// 创建httpPost
        // 设置参数
        if (paramsXml != null && paramsXml.trim().length() > 0) {
            StringEntity stringEntity = new StringEntity(paramsXml, "UTF-8");
            stringEntity.setContentType(CONTENT_TYPE_TEXT_HTML);
            httpPost.setEntity(stringEntity);
        }
        return sendHttpPost(httpPost);
    }


    /**
     * 将map集合的键值对转化成：key1=value1&key2=value2 的形式
     *
     * @param parameterMap 需要转化的键值对集合
     * @return 字符串
     */
    public static String convertStringParamter(Map parameterMap) {
        StringBuffer parameterBuffer = new StringBuffer();
        if (parameterMap != null) {
            Iterator iterator = parameterMap.keySet().iterator();
            String key = null;
            String value = null;
            while (iterator.hasNext()) {
                key = (String) iterator.next();
                if (parameterMap.get(key) != null) {
                    value = (String) parameterMap.get(key);
                } else {
                    value = "";
                }
                parameterBuffer.append(key).append("=").append(value);
                if (iterator.hasNext()) {
                    parameterBuffer.append("&");
                }
            }
        }
        return parameterBuffer.toString();
    }

    public static void main(String[] args) {

        System.out.println(sendHttpGet("http://www.baidu.com"));

    }

    public static JSONObject resultToJson(String result) throws Exception {
        JSONObject jsonObject;
        try {
            if (result == null) {
                jsonObject = null;
            } else {
                jsonObject = JSONObject.parseObject(result);
            }

        } catch (Exception e) {
            jsonObject = null;
            throw new Exception(e.getMessage());
        }
        return jsonObject;
    }
}
